CAIE IGCSE Biology 7.1.2 Principal Dietary Sources and Describe Questions

Practise identifying principal food sources and describing the roles of nutrients in the body and the effects of insufficient intake.

Exam points

Identify the principal dietary sources of the nutrients in the syllabus.
Describe the importance of the named nutrients in the body.
Relate insufficient intake of relevant nutrients to its effects on health.

[Maximum number: 4]

Carbohydrates are an important component of a balanced diet.
The flow chart in Fig. 3.1 shows some of the processes that happen to carbohydrates in food that is eaten.

Fig. 3.1

Mineral salts are another important component of a balanced diet.

State the importance of calcium ions and iron ions in a balanced diet.
calcium ions
iron ions

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CAIE IGCSE Biology 7.1.2 Principal Dietary Sources and Describe Questions question 1